﻿//
// MSBuildEngineManager.cs
//
// Author:
//       Lluis Sanchez Gual <lluis@xamarin.com>
//
// Copyright (c) 2015 Xamarin, Inc (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;

namespace MonoDevelop.Projects.MSBuild
{
	class MSBuildEngineManager: IDisposable
	{
		MSBuildEngine internalEngine;
		MSBuildEngine msbuildEngine;
		object localLock = new object ();
		bool disposed;

		public MSBuildEngine GetEngine (bool supportsMSBuild)
		{
/*			if (supportsMSBuild) {
				lock (localLock) {
					if (disposed)
						throw new ObjectDisposedException ("MSBuildEngineManager");
					if (msbuildEngine == null) {
						#if !WINDOWS
						msbuildEngine = new MSBuildEngineV4 (this);
						#else
						msbuildEngine = new MSBuildEngineV12 (this);
						#endif
					}
					return msbuildEngine;
				}
			}*/
			lock (localLock) {
				if (disposed)
					throw new ObjectDisposedException ("MSBuildEngineManager");
				if (internalEngine == null)
					internalEngine = new DefaultMSBuildEngine (this);
				return internalEngine;
			}
		}

		public void Dispose ()
		{
			lock (localLock) {
				if (internalEngine != null)
					internalEngine.Dispose ();
				if (msbuildEngine != null)
					msbuildEngine.Dispose ();
				internalEngine = null;
				msbuildEngine = null;
				disposed = true;
			}
		}
	}
}

